Textile spool and bobbin



NOV. 1 1

H. D. CLINTON TEXTILE sPooL AND BOBBIN Filed March 13 1924 2 Sheets-Sheet l CII Venter l?. @Zz/mfom Harry Nov. 11, 1924- H. D. CLINTON TEXTILE SPOOL AND BOBBIN Filed March l5 1924 2 Sheets-Sheet 2 Patented Nov. ll, lQZlfl.

UNITED STATES HARRY n. CLINTON, or JOHNSON CITY, NEW YORK.

TEXTILE sPooL AND EOBEIN.

Application led March 13, 1924. Serial No. 699,59.

To all @0.7mm t may concern.:

Be it known that l', Hanni: D. CLINTON, a citizen of the United tiltates, residing at Johnson City, in the county of Broome and ltate of New York, have invented certain new and useful lmproveinents in Textile tlpools and lobbins; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to malte and use the same.

This invention relates to spools or bobbins, and more particularly to libre-head spools designed especially for use in textile mills, in which strong, durable and nonhreakable spools are essential to the best production.

Much difficulty has heretofore been eX- perienced with spools of ordinary construction. Spools with wooden heads are not sufficiently strong to endure the severe strain, wear and friction necessarily placed upon them, and are liable to splitor become badly dented or worn after slight use.

rllhe primary object of my invention is to provide a non-breakable libre-head spool having the libre-head portions rigidly and permanently secured to the wooden barrel portion; the securing means being concealed between the assembled parts and serving to rigidly secure said parts together without the use of extraneous securing means, and the nished spool having a smooth exterior surface throughout the length and breadth thereof.

@ther objects are to produce a light, durable and inexpensive spool having a hard, non-brealable head which will not wear away, warp, become dented nor split, and which will last as long as the loom itself; the heads being so secured to the barrel of the spool as to make them practically integral parts thereof and `to render their removal practically impossible, thus supplying a `dependable spool which will greatly promote the eiliciency of textile production and largely reduce the expense heretofore involved in themaiuifacture of woven articles.

These objects are attained by forcibly in serting plugs or bushings of dogwood through central openings in vulcanized libre heads having wedge-shaped grooves in the surface thereof around said central Openings, so that the hard dogwood is caused tolill said grooves, forming, as it were, a

series of actual wedges for fastening the libre head on the plug or bushing with a wedging action, so that it cannot come off from the enlarged end of the plug or bushing, the smaller end of which is lirmly secured. in a socket or opening in the end `of the wooden barrel, whereby the assembled parts are l{irmly and inseparably united in a practically integral structure.

The invention will lirst be hereinafter more particularly described, with reference to the accompanying drawings, which are to be taken as a part of this specilication, and thenvpointed outin the claims at the end of the description. y Y

In saidv drawings, in which the several steps in the production of my improved spool are illustrated;

Fig. l illustrates a side elevation of acentrally apertured piece of vulcanized fibre, from which material. the heads are preferably formed.

Fig. 2 illustrates a partially formed spool head produced by shearing off the edgesof such a piece of libre as that shown in Fig. l, and stamping or punching on one side of the central opening therein a series of V-shaped grooves in the manner and for the `purpose hereinafter described;

Fig. 3 illustrates a roughly formed hol-` low plug or bushing, preferably of hard dogwood, securing the heads to the spool barrel or tubular wooden body of the spool;

Fig. 4 is an end elevation of the plug, looking at the smaller end thereof;

Fig. 5 illustrates the plug or bushing loosely inserted in the central opening in one of the libre heads, the latter being shown in section; h

Fig. 6 is a sectional view similar to Fig. 5 but on a larger scale, illustrating the manner in which the head and plug are united by forcing the plug under pressure through the central opening in the head as hereinafter described.

Fig. 7 is a side elevation of the spool head and attached plug completeand ready for attachment to the tubular body or barrel;

Fig. 8 is a longitudinal sectional view ofv a spool barrel with the fibre heads applied thereto and the fastener plugs pressed into the respective ends thereof;

llig. 9 is a longitudinal view, partly in section, of the finished spool, showing the head portions peripherally rounded and cut or trimmed to disk form and having the outer ends of the wedge fastener plugs shown in Fig. 8 cut off and rounded on the outer faces of the disks so as to present a smooth and finished exterior.

Fig. 10 is an end elevation of the finished spool; and

Fig. 11 is a. fragmentary sectional view taken on the line 11-11 of Fig. 9, for the purpose of illustrating the novel manner in which the head is secured against the end of the spool barrel by the wedge-plug.

Referring to the drawings, in which like reference numerals are used to designate corresponding parts throughout the several views: 12 denotes an unfinished piece of hard vulcanized fibre, from which the spool heads are preferably formed, having a central circular opening therein. Said piece may be cut, sheared, stamped and trimmed to produce a disk-like form, having a series of V-shaped grooves 13 stamped or otherwise formed therein around the central opening. These grooves are deepest at the side of the head from which they sta-rtand gradually diminish in depth toward the other side, terminating a sufficient distance from the side of the head opposite 'the starting point to leave a continuous and unbroken surface or margin around the opening in the head of the same size as the body portion of the fastener plug; thus providing a series of wedge-shaped ribs, ridges or wedges 0f triangular form in cross sect-ion,

` r-which gradually decrease in size toward one end and have comparatively sharp edges at the apices of the triangles for a purpose hereinafter described. A hollow fastener plug 14, preferably of hard dogwood, having an enlarged head portion and a counterbored recess 15 in the extremity of its re.- duced body portion, and formed of a size adapted to fit closely while permitting its insertion through the central opening in the vulcanized fibre head, is pressed into place with the tapering portion of its enlarged head compressed or squeezed into co-operable engagement with the series of teeth or grooves and ridges provided in the headpiece, thus firmly uniting the two parts, as clearly illustrated in Fig. 6, so that they will form practically an integral structure as shown in Fig. 7.

The dogwood bushings or fastener plugs are forced into the openings in the hard fibre heads under great pressure (usually many tons) so that the wedge-shaped ribs or ridges'between the grooves are caused to take into the hard dogwood and form, as it were, correspondingly shaped grooves therein which are filled by said ribs, while the hard fibre of the wood is caused to fill the V-shaped grooves in the fibre head and form therewith an interlocking connection produced by pre-formed ribs of the head and other ribs produced by the compression of the material of the plug, the grooves of the plug being filled by the pre-formed ribs of the head, while the pre-formed grooves of the head are filled by the ribs of the plug which are produced by the squeeze or conipression of the plug under pressure as it forced into the opening in the head. The advantage of forming wedge-shaped grooves which do not extend entirely across the opening in the hard fibre head, but merge in an unbroken surface or margin around the opening at that side of the head which faces the barrel, resides in the fact that each one of the little wedges formed in the wooden plug when it is forced through the opening in the head terminates before it passes entirely through such opening, so that no wedges can be formed on the plug that will protrude through tho opening, and any strain tending to force the head oft' the barrel is exerted against each one of these wedges, thus adding great strength of resistance to the construction, aud as there is no opening whatever for such wedges to pass through, expansion of the end of the barrel with consequent tendency to split or weaken the same, is prevented. Thus the two parts are united by wedging the heads on the plugs in such manner that when the smaller end portions of the head are inserted and firmly secured in the ends of the tubular barrel, the assembled parts are rigidly and immovably secured together rendering it impossible to separate them or get the heads off the tubular body.

Head-pieces united as described are applied at the respective ends of a hollow wooden body 16 forming the barrel or center-piece of the spool in the following manner. rlhe inwardly extended ends of the plugs are coated with an adhesive substance, preferably glue-coated, and inserted in the ends of the hollow body with suilicient pressure to firmly secure and hold them in place. After the glue has thoroughly set, the assembled elements of the spool form practically an integral structure, which is placed on a lathe and cut, trimmed and finished to form the finished spool; its head portions 12 being peripherally rounded, cut and trimmed to substantially true disk form, while the outwardly projecting head portions of the plugs are sheared oil.' or trimmed in such manner as to give the outer sides of the head-pieces a inrat,sinooth and finished appearance and at the same time hold the latter securely `in place.

It will thus be seen that I have provided a simple, light, efficient and dependable spool or bobbin of novel construction, from which the hard fibre heads cannot be removed except by breaking thc spool apart; it having been proven by actual test that if.

kis practically impossible to remove the heads, and that the latter will break under excessive pressure applied thereto before they can be torn loose or separated from the body portion of the spool. The novelty and utility of a spool of this character, and the simple and inexpensive .method of producing the same will readily appear to those slrilled in the art to which the invention relates; but it Will be understood, of course, that the same means may be employed in constructing spools with heads of steel or other material than vulcanized fibre, and fastener plugs of other Wood than dogwood, but for the best results, hard vulcanized `libre heads and dogwood bushings or fastener plugs are indispensable. The lini'sl'ied spool is to all intents and purposes unbreakable and far superior lto anything of its hind heretofore known.

Having thus described my inventiont what l claim as new and desireI to secure by Letters Patent of the United States is:

l. ln a textile spool orbobbin, a Wooden barrel having a hard libre head, said head having a central opening therein and a series of grooves and intervening ribs or ridges of Wedgeehaped form triangular in cross-section surrounding said central opening and enlarging toward that side of the head opposite the side which faces the barrel, and a Wooden plug having a. tapered body portion forcibly inserted in said. opening so as to embed the ribs in the body of the plug and firmly secure the tivo parts together, said plug being' inserted in the end of the barrel and having an adhesive substance ap plied thereto for securing the plug and attached head to the barrel.

2. A. textile spool or bobbin having a Wooden barrel and hard libre heads With central openings therein, the surface surrounding the opening' being provided With a series of ribs or ridges of triangular form in cross section and gradually decreasing in size toward one end and merging in said surface, and Wooden plugs having tapering body portions forcibly inserted in said openings so as to embed said ribs in the Wooden body, thereby ivedging the heads on the plugs and firmly securing the tivo parts togather, said plugs being inserted in the ends of the barrel and having an adhesive sub stance applied thereto for securing them and the attached heads to the barrel.

3. A textile spool or bobbin comprising a 'tubular body ot' wood having' hard libre heads secured to the opposite ends thereof, said heads having central openings therein and series of grooves in the surface thereof around said openings extending from one side only part-Way across and diminishing in depth toward the other sido, so as to leave a continuous unbroken surface around the margin of the opening at the other side of the head and provide a series of ribs or ridges of substantially triangular form in lross section, gradually decreasing in size toward one end and mening in said sur hice; bushii'igs or plugs o' Wood each having a main body portion and a slightly enlarged and tapering outer-end portion driven into an opening in the head so as to embed said ribs in the tapering end-portion of the plug and cause the material of the plug to lill the grooves between the ribs in the head., thereby firmly securing the heads and plugs together; said plugs having an adhesive substance applied thereto and forcibly inserted in the ends of the tubular body, whereby the assembled parts are rigidly and permanently secured together and form a practically integral and nonbii'ealrable spool.

Ll. Si textile spool or bobbin comprising a tubular body of Wood having heads of hard vulcanized fibre secured to the opposite ends thereof; said heads having central openings therein and series of grooves in the surface thereof around said openings, said grooves gradually decreasing in depth toward one end, thus forming a series of ribs or ridges of substantially triangular form in cross section which gradually decrease in size toward one end and merge in said surface at said end; dog-Wood bushings or plugs, each having a main body portion and a slightly enlarged and tapering outer-end portion driven into an opening in the head so as to embed said ribs in the tapering end-portion of the plug and cause the material of the plug to lill the grooves between the ribs in. the head, thereby firmly securing the heads and plugs together; said plugs having an adhesive substance applied thereto and being forcibly inserted in the ends of the tubular body, whereby the assembled parts are rigidly and permanently secured together so as to form a practically integral and nonbreakable spool.

5 In a textile spool or bobbin, a hard i libre head having a central opening therein and a series of grooves and intervening ribs or ridges on the surface thereof surrounding said opening, said grooves gradually increasn ing in depth toward one end, and said ribs being of substantially triangular form in cross section and decreasing in size toward the side of the head that faces the barrel, said ribs having comparatively sharp edges at the apices of the triangles.

6. ln a textile spool or bobbin, a hard libre head having a central opening therein and a series of grooves and intervening ribs or ridges on the surface thereof surroundsaid opening, said grooves gradually increasing in depth toward one end, and said ribs being of substantially triangular form in cross section and decreasing in size toward the side of the head that faces the barrel, said ribs having comparatively sharp edges at the apices ot the triangles, and a Wooden plug or bushing forcibly inserted in said opening so as to embed said ribs in the surface o the Wood and 'firmly Secure the two parts together.

7. The herein described method of forining textile spools or bobbins which consists in forming a central opening in av hard fibre head, then forming a series of grooves in the surface of the head surrounding said opening and thereby forming a series of Wedgeshapedr ribs or ridges of triangular form in cross-section which gradually increase in size toward the deeper ends of the grooves7 said grooves gradually decreasing in depth to HARRY D. CLINTON.

Witnesses z XVM. H. MILLER, M. EATON. 

